Castle's executive producer has confirmed that the show will air an episode based on Ghostbusters next season.

Laurie Zaks explained that he is hoping some of the original Ghostbusters stars will appear in the instalment.

"The episode airs on Halloween night, so we had to do a Halloween episode," he told Collider.

"The story arena was just broken, but my own personal wish for that is that we get one of the original Ghostbusters to appear. I think it'll be a very fun episode. Honestly, that's all I know about it because they're just starting to write it... Everyone's really excited about that."

Advertisement - Continue Reading Below

Zaks also revealed that another instalment will have a superheroes theme, saying: "The 'superheroes' is the second episode and they alluded to an episode with Ryan's gun, the gun that was left on the scene of the 3xK killer. That's a very compelling episode. That's going to be really good."

Zaks added that he is hoping for some interesting guest stars in the new season.

"There's a few coming up," he said. "We'd love to use somebody from [star Nathan Fillion's previous show] Firefly. Nathan has a lot of friends, so we always have him calling people."